Ji Zhongxing, who blew up a homemade bomb at Beijing Capital International Airport in July, has been officially charged with ‘causing an explosion’, China Daily reports.Ji, who suffered minor injuries in the explosion but caused no harm to anyone else, has been in custody since July 21.Under Chinese law, anyone who causes an explosion or endangers public safety without causing serious consequences shall be sentenced to a fixed prison term of no less than three years but no more than 10.Following Ji’s bombing, Dongguan’s public security bureau reopened an investigation into his alleged beating by chengguan in 2005 which left him paralysed from the waist down.